/* ===== 基础变量 ===== */
:root {
  --bg: #ffffff;
  --card: #f5f5f5;
  --card-hover: #e8e8e8;
  --border: #d4d4d4;
  --text: #171717;
  --text-muted: #6b7280;
  --accent: #3b82f6;
  --font: 'SF Mono', Consolas, monospace;
}

/* ===== 重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
}

.navbar-brand {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.navbar-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.navbar-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color 0.1s;
}

.navbar-links a:hover {
  color: var(--text);
}

.navbar-links a.active {
  color: var(--accent);
}

/* ===== 汉堡菜单 ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu a:hover {
  color: var(--text);
}

/* ===== 主容器 ===== */
.main {
  padding-top: 56px;
  min-height: 100vh;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* ===== 页面 ===== */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* ===== 欢迎页 ===== */
.hero-title {
  font-size: 32px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.hero-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

/* ===== 统计卡片网格 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.stat-card {
  background-color: var(--card);
  padding: 24px;
  text-align: center;
}

.stat-card:hover {
  background-color: var(--card-hover);
}

.stat-value {
  font-size: 24px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== 维度卡片 ===== */
.section-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.dimension-card {
  border: 1px solid var(--border);
  background-color: var(--card);
  padding: 24px;
  margin-bottom: 16px;
}

.dimension-card:hover {
  background-color: var(--card-hover);
}

.dimension-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.dimension-code {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

.dimension-name {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dimension-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
}

.dimension-option {
  color: var(--text);
}

/* ===== 分隔线 ===== */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ===== CTA区域 ===== */
.cta-section {
  text-align: center;
  margin-top: 48px;
}

.cta-text {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

/* ===== 按钮 ===== */
.button {
  display: inline-block;
  background-color: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 14px 32px;
  font-family: var(--font);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.1s;
}

.button:hover {
  background-color: var(--card-hover);
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.button-primary {
  background-color: var(--accent);
  border-color: var(--accent);
}

.button-primary:hover {
  background-color: #2563eb;
}

/* ===== 进度条 ===== */
.progress-container {
  margin-bottom: 48px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.progress-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.progress-count {
  font-size: 12px;
  color: var(--text-muted);
}

.progress-bar {
  height: 4px;
  background-color: var(--border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--accent);
  transition: width 0.3s;
}

/* ===== 题目卡片 ===== */
.question-card {
  border: 1px solid var(--border);
  background-color: var(--card);
  padding: 32px;
  margin-bottom: 24px;
}

.question-number {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.question-text {
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ===== 选项 ===== */
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option {
  border: 1px solid var(--border);
  background-color: var(--bg);
  padding: 16px 20px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  text-align: left;
  width: 100%;
  transition: border-color 0.1s, background-color 0.1s;
}

.option:hover {
  background-color: var(--card-hover);
}

.option.selected {
  border-color: var(--accent);
  background-color: var(--card-hover);
}

.option-label {
  color: var(--text-muted);
  margin-right: 12px;
}

/* ===== 导航按钮 ===== */
.nav-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
}

/* ===== 结果页 ===== */
.result-type {
  text-align: center;
  margin-bottom: 48px;
}

.result-type-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.result-type-code {
  font-size: 48px;
  font-weight: 500;
  letter-spacing: 4px;
  margin-bottom: 8px;
}

.result-type-name {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.result-type-quote {
  font-size: 14px;
  color: var(--text-muted);
  font-style: italic;
  padding: 0 32px;
}

.result-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* ===== 结果区块 ===== */
.result-section {
  margin-bottom: 48px;
}

.result-section-title {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.result-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 基因条 ===== */
.gene-group {
  margin-bottom: 24px;
}

.gene-group-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.gene-item {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.gene-label {
  width: 60px;
  font-size: 12px;
  color: var(--text-muted);
}

.gene-bar-container {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}

.gene-bar {
  flex: 1;
  height: 8px;
  background-color: var(--border);
  overflow: hidden;
}

.gene-bar-fill {
  height: 100%;
  background-color: var(--accent);
  transition: width 0.5s;
}

.gene-bar-fill-alt {
  background-color: #9ca3af;
}

.gene-percent {
  width: 40px;
  font-size: 12px;
  text-align: right;
  color: var(--text-muted);
}

/* ===== 优缺点列表 ===== */
.result-list {
  list-style: none;
  padding: 0;
}

.result-list li {
  font-size: 13px;
  color: var(--text-muted);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.6;
}

.result-list li:last-child {
  border-bottom: none;
}

.result-list li::before {
  content: '>';
  color: var(--accent);
  margin-right: 12px;
}

/* ===== 生活建议 ===== */
.advice-card {
  border: 1px solid var(--border);
  background-color: var(--card);
  padding: 20px;
  margin-bottom: 12px;
}

.advice-card:hover {
  background-color: var(--card-hover);
}

.advice-label {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.advice-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 兼容性 ===== */
.compat-card {
  border: 1px solid var(--border);
  background-color: var(--card);
  padding: 20px;
  margin-bottom: 12px;
}

.compat-card:hover {
  background-color: var(--card-hover);
}

.compat-label {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.compat-types {
  font-size: 14px;
  color: var(--text);
  letter-spacing: 2px;
}

/* ===== 分享按钮组 ===== */
.share-section {
  text-align: center;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.share-title {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.share-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .navbar-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: 24px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 32px 16px;
  }

  .result-type-code {
    font-size: 36px;
  }

  .share-buttons {
    flex-direction: column;
    align-items: center;
  }

  .gene-label {
    width: 50px;
    font-size: 11px;
  }
}